Home / 738,274.20-1,107,411.30-419,409.60

Finding the Fourth Proportional to 738,274.20, 1,107,411.30 and 419,409.60

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Solution

The fourth proportional to 738,274.20, 1,107,411.30 and 419,409.60 is: 629,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,274.20 : 1,107,411.30 = 419,409.60 : x
  2. Step 2: Convert to fraction form
    738,274.20/1,107,411.30 = 419,409.60/x
  3. Step 3: Cross multiply
    738,274.20x = 1,107,411.30 × 419,409.60
  4. Step 4: Simplify right side
    738,274.20x = 464,458,930,368.48
  5. Step 5: Solve for x
    x = 464,458,930,368.48/738,274.20
  6. Step 6: Final answer
    x = 629,114.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.